Re: [中學]國三的幾何
※ 引述《jenshi (小旭)》之銘言:
: A、B 、C為圓上三點,且AB弧:BC弧:CA弧=3:4:5,
: 若圓O的半徑為4,則ABC面積為何?
就算不用高中方法一樣可解
圖來也
http://imgur.com/3cupSVn

幾何的東西還是看圖比較易懂
--
Alpha Bravo Charlie Delta Echo Foxtrot Golf Hotel India
Juliet Kilo Lima Mike November Oscar Papa Quebec Romeo
Sierra Tango Uniform Victor Whiskey Xray Yankee Zulu
NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI |DLE DC1 DC2 DC3
DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US | !"#$%&'()*+,-./ 0123456789
:;<=>? @ABCDEFGHIJKLMNO PQRSTUVWXYZ[\]^_ `abcdefqhijklmno pqrstuvwxyz{|}~ DEL
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.115.189.46
※ 文章網址: https://www.ptt.cc/bbs/Math/M.1458795688.A.B77.html
推
03/24 15:16, , 1F
03/24 15:16, 1F
推
03/28 19:32, , 2F
03/28 19:32, 2F
討論串 (同標題文章)